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1a4d82fc | 1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
1a4d82fc JJ |
11 | // Tests that an `&` pointer to something inherently mutable is itself |
12 | // to be considered mutable. | |
223e47cc | 13 | |
85aaf69f | 14 | #![feature(optin_builtin_traits)] |
223e47cc | 15 | |
85aaf69f SL |
16 | use std::marker::Sync; |
17 | ||
18 | struct NoSync; | |
19 | impl !Sync for NoSync {} | |
20 | ||
21 | enum Foo { A(NoSync) } | |
223e47cc | 22 | |
1a4d82fc | 23 | fn bar<T: Sync>(_: T) {} |
223e47cc LB |
24 | |
25 | fn main() { | |
85aaf69f | 26 | let x = Foo::A(NoSync); |
54a0048b | 27 | bar(&x); //~ ERROR `NoSync: std::marker::Sync` is not satisfied |
223e47cc | 28 | } |